Power regulation of source and amplification components

-- Sun, 08/09/2009 - 02:03

I am curious to know how the inbuilt power supply units of high quality amplifiers and cd players deal with voltage not equal to the level specified in the user manual (120V).

If say the actual voltage is 110V or 130V, will the unit transform it back to 120V, or does it just play the music at the actual voltage, with all associated distortions and disruptions to the music timing and dynamics.
I know for a fact the voltage in my area runs at about 5% more than specified in the manual so I am concerned this is impacting the music's enjoyment.

Does anyone have any insights or clues into this?

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